![Picture](/uploads/1/2/3/1/12313922/9165614.jpg)
Warm Up
Today is our trig quiz - on lessons #1-4. While I do a HW check please practice, practice, practice. For example the picture on the left is taken from the link to Khan Academy (from the online practice unit 6 above). Try and see if you can master this level, or get to the next one. If you want you can also practice another topic that you may be interested in rewriting - for example Unit 5 linear systems.
Lesson
Today we will be looking at more complex problems. Going through the steps of problem solving.
Today is our trig quiz - on lessons #1-4. While I do a HW check please practice, practice, practice. For example the picture on the left is taken from the link to Khan Academy (from the online practice unit 6 above). Try and see if you can master this level, or get to the next one. If you want you can also practice another topic that you may be interested in rewriting - for example Unit 5 linear systems.
Lesson
Today we will be looking at more complex problems. Going through the steps of problem solving.
![Picture](/uploads/1/2/3/1/12313922/5845238.png)
Quick activity if you have this app...geometry pad.
- make a triangle
- click on a vertex and display all three angles
- what do you notice about the three angles for every triangle?
Is this a proof?
- make a triangle
- click on a vertex and display all three angles
- what do you notice about the three angles for every triangle?
Is this a proof?
![Picture](/uploads/1/2/3/1/12313922/7449535.jpg)
Solving a triangle means to find all missing measurements. Along with using the three trig ratios keep in mind two previous properties of right triangles:
1. Pythagorus' Theorem
2. The angle sum of a triangle is always 180 degrees.
When solving a triangle start by clearly knowing what information you have (especially if there is an angle), then what one other measurement you can find. Plan your order first and make sure to check if your answer is reasonable. You can now practice lesson #5.
1. Pythagorus' Theorem
2. The angle sum of a triangle is always 180 degrees.
When solving a triangle start by clearly knowing what information you have (especially if there is an angle), then what one other measurement you can find. Plan your order first and make sure to check if your answer is reasonable. You can now practice lesson #5.
![Picture](/uploads/1/2/3/1/12313922/1693983.jpg)
When solving a more complex problem try to make the problem simpler. If you have more than one right triangle, look at each one separately and clearly mark what measurements you know - what for shared sides or related angles.
Next mark what measure you are trying to find. Then by working backwards begin to find the measurements that will help.
Always show your work, be prepared to start over and check if your answer is reasonable. You can now practice lesson #6.
That's trig folks...now time to practice!
Next mark what measure you are trying to find. Then by working backwards begin to find the measurements that will help.
Always show your work, be prepared to start over and check if your answer is reasonable. You can now practice lesson #6.
That's trig folks...now time to practice!